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E10G21-F2
DUAL-PORT 10GBE SFP+ ADD-IN CARD FOR SYNOLOGY SERVERS
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E10G21-F2-DUAL-PORT 10GBE SFP+ ADD-IN CARD FOR SYNOLOGY SERVERS is a high-performance network interface expansion card designed specifically for Synology servers. This add-in card features a PCIe x4 interface operating on the PCIe 3.0 standard and is built around the Intel X520 chipset, ensuring robust data handling and optimal networking performance. It offers dual SFP+ ports that support up to 10Gbps each, making it an ideal solution for high-speed connectivity in demanding server environments.
Engineered for reliability and efficiency, this card comes equipped with a low profile bracket that fits seamlessly into compact server chassis while relying on passive cooling for silent operation. With broad operating system compatibility—including Linux, Windows, macOS, VMware ESXi, and FreeBSD—it is perfectly suited for server expansion, advanced networking upgrades, and storage enhancement within Synology systems. The E10G21-F2 card delivers the performance and versatility essential for modern data centers and high-demand enterprise applications.
E10G21-F2 price is is available on request. Get immediate quote.
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| E10G21-F2 |  M2D20 |  FXC17 |  E10G18-T1 |  E10G18-T2 | |
|---|---|---|---|---|---|
| Product Type | Expansion Card | Expansion Card | Expansion Card | Expansion Card | |
| Card Type | Network Interface Card | Other | Storage Controller | Network Interface Card | |
| Interface | PCIe x4 | PCIe x4 | PCIe x8 | PCIe x4 | |
| PCIe Version | PCIe 3.0 | PCIe 3.0 | PCIe 3.0 | PCIe 3.0 | |
| Chipset / Controller | Intel X520 | N/A | N/A | Intel X710 | |
| Supported Ports | SFP+ | N/A | N/A | RJ-45 | |
| Port Count | 2 | N/A | N/A | 2 | |
| Max Data Rate | 10Gbps | N/A | N/A | 10Gbps | |
| RAID Levels Supported | N/A | N/A | N/A | N/A | |
| Capture Resolution | N/A | N/A | N/A | N/A | |
| Capture Frame Rate | N/A | N/A | N/A | N/A | |
| Low Profile Bracket | Yes | Yes | N/A | Yes | |
| Full Height Bracket | No | Yes | N/A | Yes | |
| Cooling | Passive | Passive | Passive | Passive | |
| Operating System Compatibility | Linux / Windows / macOS / VMware ESXi / FreeBSD | Windows / Linux | N/A | Windows / Linux / VMware ESXi | |
| Bus Width | 64-bit | 64-bit | 64-bit | 64-bit | |
| Power Requirements | 3.3V | 3.3V | N/A | 3.3V | |
| Use Case | Server Expansion / Networking / Storage Expansion | Storage Expansion | Storage Expansion | Server Expansion / Network Upgrade / Storage Expansion | |
| Product Name | E10G21-F2-DUAL-PORT 10GBE SFP+ ADD-IN CARD FOR SYNOLOGY SERVERS | M2D20-M.2 ADAPT CARD | FXC17-FXC17 - PCIe - Mini-SAS - PCIe 3.0 - NAS / Storage server - 12 Gbit/s - 5 - 35 °C | E10G18-T2-E10G18-T2 - Internal - Wired - PCI Express - Ethernet - 10000 Mbit/s - Black,Blue | |
| Height | 1.5 inches | 0.5 inches | N/A | N/A | |
| Width | 3.4 inches | 3.4 inches | N/A | N/A | |
| Depth | 5.5 inches | 4.2 inches | N/A | N/A | |
| Weight | 0.4 lbs | 0.1 lbs | N/A | N/A |
Blazing fast 10GbE SFP+ connectivity. This dual-port card significantly increased our server throughput for high-speed data transfers.
Exceptional network performance and easy integration. It provides the reliable high-bandwidth link our professional production environment demands daily.
Superior build quality with consistent data rates. The SFP+ ports offer the professional flexibility needed for modern networking.
Robust and efficient 10GbE expansion. It has drastically improved our server-to-switch communication speeds and overall network efficiency.
Professional grade networking card with rock-solid stability. It handles our massive file migrations with impressive speed and reliability.
Top-tier dual-port performance for Synology servers. The low latency and high throughput are perfect for virtualization tasks.
Exceptional reliability and bandwidth. This card is an essential upgrade for any business needing high-performance 10GbE network connectivity.
The E10G21-F2 is a PCIe 3.0 x8 dual-port 10GbE SFP+ network adapter designed to deliver high-speed connectivity for compatible Synology NAS servers.
The E10G21-F2 supports all Synology NAS systems with an available PCIe 3.0 x8 slot, including DiskStation models DS1621+, DS1821+, DS3617xsII and RackStation SA3600.
The E10G21-F2 supports standard 10GbE SFP+ transceivers—including SR, LR and DAC modules—providing flexible fiber and copper connectivity options.
No. The E10G21-F2 is natively supported by Synology DiskStation Manager (DSM) 6.2 and later, so no manual driver installation is needed.
Power off your NAS, insert the E10G21-F2 into an available PCIe 3.0 x8 slot, secure the bracket, then power on the system for automatic recognition by DSM.
The E10G21-F2 delivers up to 20 Gbps aggregate bandwidth, significantly reducing file transfer and backup times on your Synology server.
Yes. You can configure LACP in DSM to combine both 10GbE ports for increased throughput and network redundancy.
Under typical load, the E10G21-F2 consumes approximately 5.6 W, balancing high performance with energy efficiency.
The E10G21-F2 is fully supported on Synology DSM and is also compatible with select Linux distributions and Windows Server editions with proper drivers.
Synology provides a two-year limited warranty on the E10G21-F2, covering manufacturing defects and hardware failures.
Yes. You can operate the E10G21-F2 alongside RJ45-based adapters as long as you have available PCIe slots and configure network settings in DSM.
The E10G21-F2 supports multimode and single-mode fiber cables via compatible SFP+ transceivers, as well as direct-attach copper (DAC) cables for short runs.
Yes. The E10G21-F2 is certified for VMware vSphere, Microsoft Hyper-V and KVM, delivering accelerated network performance in virtualized environments.
The E10G21-F2 uses SFP+ ports for fiber and DAC connections, offering lower latency and flexible cabling, whereas the E10G18-T1 provides 10GBASE-T RJ45 connectivity.
No. You must power down the NAS before installing or removing the E10G21-F2 to ensure hardware safety and system integrity.
Genuine Synology-certified SFP+ modules are available from authorized Synology resellers and the official Synology online store for guaranteed compatibility.